Home / 5,019.84-6,927.57-2,781.72

Finding the Fourth Proportional to 5,019.84, 6,927.57 and 2,781.72

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Solution

The fourth proportional to 5,019.84, 6,927.57 and 2,781.72 is: 3,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.84 : 6,927.57 = 2,781.72 : x
  2. Step 2: Convert to fraction form
    5,019.84/6,927.57 = 2,781.72/x
  3. Step 3: Cross multiply
    5,019.84x = 6,927.57 × 2,781.72
  4. Step 4: Simplify right side
    5,019.84x = 19,270,560.02
  5. Step 5: Solve for x
    x = 19,270,560.02/5,019.84
  6. Step 6: Final answer
    x = 3,838.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.